Diagnostic instrument



` March- 1, 1927.

`H. L. DE ZENG DIAGNOSTIC INSTRUMENT Filed May 18. 1923 .IML-m:

ATTORNEYS.

can be ylocated in as close Patented Mar. 1, 1927.

`HENRY L. DE ZENer,v 0E MoonEs'roWNNEW JESEN,

AAssrGNon'"ro DEv ZENC STANDARD COMPANY, v0E CAMDEN, NEW JERsEY.y A ooEPoRA'rIoNoE NEW 'J'EEsEiL Orfor 'lioldii'igi open'the i DfAeNosTfo INSTRUMENT'.

a diagnostic desired orifice 'all of properly illuaidafpted to be emoat, and coniand arrangenientl of lighting` device in ci'injunction with which a blade or member is employed-'preftlie instrument withl ei'ably in suoli a manner that moved after sterilization. The blade maybe replaced form of surgical instru'n'ient.v

The y:invention :relates use 'for discarding ror it may be refor by any useful particularly to a ui'iiversalholder for a tongue depiressonor other useful device employed diagnosisor in doing a in 'making a surgical operation ivhere artificial illumination is desired.

One ofthe essential features"of "this jaistrument is a. constructionwhereby tlieslanip proximity as possible to the object Which ris to bei examined and yet Vbe separate member adapted to be from the detachable held by this device Among the advantages contained in this invention is its adaptability to vc lif'ferent types of handles so be either ener gy that the instrument may self contained or receivev its electric from an extraneous source of supply.

Another object of my invention islto vprovide in a device of this character a condensing lens to concentrate the raysfof light on the object which is toybe examined.

'Vi'th'tlie above which will hereinafter more Vc and other 'objectstin `view learly r'appear,

Vmy invention eomprehends a novel diagnostic instrument.

It further lcomprehends other novel features' of advantage in .tl-ie detailed description and claims.

which: Will clearly appear thel appended For the purpose of'illustratiiig my vinvention, 'I have shown in drawings a typical v'embodi which is v` at present this embodiment has been to givesatisfa is, however, various 'insti'unientialities the :accompanying ment thereof preferred byv me, since found practice ctory and Ireliablev results. 'It to be understood that the of which iny invention consists can be variously Aarranged and organized an d lii'n'ited to the "precise arra that my invention is not ngement and ing outwardly from it a 'threaded sleeve and adapted Areceive a lamp 1523. seiiai'nofesejss.

organization of 'these inst-rumentalitis as here-in shown and described.

'Figure l represents, in .'side eleif'atioii. a

ldiagiiostic instrument, embodying niy inposition Vwith 'respect to the head Vportion 'of theV instrument and its lamp.

"Similar numerals of reference indicate corresponding' parts.

Referring to the drawings; i l designates agi'asping' handlefivhich, as

illustrated, is inthe forni of ai casing adapted to contain a storage battery in the 'usual iiiaiiiier, in' ordertof effect the' openingen closing of the circuit through the.' lamp, a iiutv'Q'is employed Whichn'hen moved in one direction will light vthe lamp and [which when moved in a reyerse direction wvill'open the lamp circuit. Theha'irdjle thas project- Wliich is adapted toengage the internally .threaded portion 4 lo'fthe headA portion 5.

The liandle isv provided with a resiliently mounted p ost`6 infcjircuit ,ivith the battery toconta'ct with vafconductor 7 which terminates in the lamp socket Sfivhiclh forms a part ofthe lampc'arrier 9 ivhich is connected with aiidforni's a part ofthehead portion 5. The lamp socket 8 isadapted to 10. The lamp vcarrier 9 :is connected with a` blade carrier ll 'ivllricln as illustrated, is best Vseen vin Figure '3, fand is vice of this eharacter.

The electric circuit is the "usual 'circuit Atruinerits'of this )general type, one lead of in battery handles for diagnostic 'provided with tlie inn'aif'dly detle'c-tedila'ngjes @offablade or any useful' type the circuit extending from the contact plunger in the battery handle to the lamp socket, as shown in Figure 5. The other lead of the circuit extends from the bottom of the battery up through the handle, and is grounded on the metal parts communicating with the lamp socket, being a well known prior art arrangement and not a part of applicants present invention.

If desired, the lens holder 13 may be cmployed, which is in the form of a sleeve slidable on the lens carrier and provided with a condensing lens lll.

It will be apparent that in accordance with this invention the light is so located that the object of which the diagnosis is to be made is fully illuminated and the operator can grasp the instrument in one hand and with his thumb or finger close or open the circuit to light or extinguish the lamp.

The member l2 may be of any suitable material which after use :an be either discarded or sterilized for future use.

It will be seen from the drawings that in the preferred form of my invention, as herein shown, the electric lamp and the detachable blade or member are preferably so arranged that the axis of the lamp and the aXis of the detachable member are approximately parallel with each other when such lamp and member are in their operative positions.

My present invention has many features 'of utility and advantage not found in any other similar form of instrument. The con tacting member may be wholly discarded after use or separately and wholly sterilized. In practice, a wooden spatula is widely used by the medical profession because it may be wholly discarded after use without much eX- pense being entailed thereby. The use of these wooden blades has become general in that perfect sterilization may he obtained. My adaptation of these blades to a suitable holder having' a properly arranged electric lighting attachment provides a perfect instrument which cally.

It is of course understood that a suitable blade of any other material may be emis entirely safe antiseptiployed, and, if metal, it may be fully sterilized without injury to the holder, the lamp or the electric connection.

My invention as shown in the drawings provides a lamp in proper position to give the required illun'iination, since it reaches down well over the attached end of the blade.

It is advantageous in some cases to employ a rellector or shield 16 which as illustrated in the drawing is retained in position by the lamp, but which if desired could be fixed in position. It will now loe apparent that I have devised a new and useful diagnostic instrument which embodies the features of advantage enumerate-d as desirable in the statement of the invention and the above description, and while I have in the present instance, shown and described a preferred embodiment thereof which will give in'practice satisfactory and reliable results, it is to be understood that this embodiment is susceptible of modification in various particulars without departing .from the spirit or scope of the invention or sacriiicing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

l. In an instrument of the character described, a head portion comprising a dctachable handle connection7 an inclined oifset portion depressed toward the handle connection, having a lamp socket, a lamp in the lamp socket, a lens cell secured to the outside of the lamp socket, and a lens in the lens cell in front of the lamp.

2. In a device of the character described, a head portion comprising an upright portion having detachable handle connections and an offset portion rigidly held in inclined relation to the upright portion depressed towards the handle connection, a lamp socket in the end of the offset portion, a lens cell detachably mounted on the end of the offset portion, and a lens in the lens cell in front of the lamp.

3. A diagnostic instrument comprising a handle having a separable connection, a head having two arms rigidly .secured together,

one arm having a connection fitting the connection on the handle and the other arm a lamp, a slide over the lamp and a lens in the slide aligned with the lamp.

1l. A diagnostic instrument comprising a handle ha ving` a separable connection, a blade head having two arms secured together, one arm having a connection fitting the connection on the handle and the other arm a lamp, and a lens aligned with the lamp.

A diagnostic instrument'comprising a handle having a separable connection, a blade head having two arms rigidly secured together, one arm having a connection fitting the connection on the handle and the other arm a lamp, a slide over the lamp, a lens in the slide aligned with the lamp, a blade connection on one arm, and a blade in the blade connection.

G. A diagnostic instrument comprising a handle having a separable connection, a blade head having two arms secured together., one arm having a connection lit-ting the connection on the handle and the other arm, a lamp, a lens aligned with the lamp,-

a blade connection on one arm, and a blade 1n the blade connection.

HENRY L. DE ZELIG. 

